Final answer:
Options (A) density of beryllium and (B) melting point of sodium chloride are physical properties while (C) the combustion of carbon is a chemical property; hence, (D) is the correct answer: two of the choices are physical properties.
Step-by-step explanation:
Physical properties are characteristics of matter that can be observed or measured without changing the substance's chemical identity.
Additionally, a physical property is any property that is measurable, involved in the physical system, intensity on the object's state and behavior.
The changes in the physical properties of a system can be used to describe its changes between momentary states. A quantifiable physical property is called physical quantity.
Options (A) 'Beryllium has a density of 1.85 g/cm3' and (B) 'Sodium chloride melts at 801°C' are examples of physical properties because they describe measurable characteristics that do not involve a chemical reaction.
Option (C) 'Carbon burns in oxygen at 700°C' is a chemical property because it describes the substance's ability to react chemically with oxygen, resulting in combustion, which is a chemical process.
Therefore, (D) 'Two of the choices listed above are physical properties' is the correct answer.